javascript - Can't Get jquery AJAX request to process -


hi i'm trying simple ajax call method in code behind. @ point i'm testing, i'm keeping simple possible, it's erroring. i'm sure it's simple mistake, have no idea do. seems straight forward, , should work, when click button, pops alert saying "[object object]". here code, appreciated:

aspx file:

<%@ page language="c#" autoeventwireup="true" codebehind="testpage.aspx.cs" inherits="program.testpage" %>  <!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "http://www.w3.org/tr/xhtml1/dtd/xhtml1-transitional.dtd">  <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server">     <title></title> <script type="text/javascript" src="http://code.jquery.com/jquery-1.8.2.js"></script> </head> <body>     <form id="form1" runat="server">         <div>             <input type="button" id="btnsubmit" value="submit" />         </div>     </form>       <script type="text/javascript">           $(function () {               $('#btnsubmit').click(function () {                   $.ajax({                       type: "post",                       contenttype: "application/json; charset=utf-8",                       url: "testpage.aspx/insertdata",                       datatype: "json",                       data: "{}",                       success: function (data) {                           alert(data.d);                                                },                       error: function (result) {                           alert(result);                       }                   });               });           });     </script> </body> </html>

code behind:

using system; using system.collections.generic; using system.linq; using system.web; using system.web.ui; using system.web.ui.webcontrols; using system.text; using system.text.regularexpressions; using system.data.sqlclient; using system.web.services;  namespace program {     public partial class testpage : system.web.ui.page     {         protected void page_load(object sender, eventargs e)         {         }         [webmethod]         public static string insertdata()         {             string retmessage = "ddd";             return retmessage;          }     } }

update

sorry everyone, turns out issue in global.asax. intercepting ajax request, , messing up. once made sure http in asax file, stopped killing ajax request, , started working.

in javascript, you're calling insertdata post

try

    [webmethod]     [httppost]     public static jsonresult insertdata()     {         return json(new { message = "ddd" }, jsonrequestbehavior.allowget);      }

and in javascript,

success: function (data) {     alert(data.message);                          },

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